package com.improve.frame.auth.utils;

import cn.hutool.core.util.ObjectUtil;
import com.improve.frame.auth.model.LoginAppUser;
import com.improve.frame.common.exception.BusinessException;
import lombok.experimental.UtilityClass;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.HttpStatus;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;

/**
 * @Description
 *      Security工具类
 * @Author wzxing918
 * @Date 2021-03-31
 * @Version 1.0.0
 **/
@Slf4j
@UtilityClass
public final class SecurityUtil {
    /**
     * 获取用户账户
     **/
    public static Long getUserId() {
        try {
            LoginAppUser loginUser = getLoginUser();
            return ObjectUtil.isNotNull(loginUser) ? loginUser.getId() : null;
        } catch (Exception e) {
            throw new BusinessException("获取用户账户异常", HttpStatus.UNAUTHORIZED.value());
        }
    }

    /**
     * 获取用户账户
     **/
    public static String getUsername() {
        try {
            LoginAppUser loginUser = getLoginUser();
            return ObjectUtil.isNotNull(loginUser) ? loginUser.getUsername() : null;
        } catch (Exception e) {
            throw new BusinessException("获取用户账户异常", HttpStatus.UNAUTHORIZED.value());
        }
    }

    /**
     * 获取用户
     **/
    public static LoginAppUser getLoginUser() {
        try {
            Object principal = getAuthentication().getPrincipal();
            if (principal instanceof LoginAppUser) {
                return (LoginAppUser) principal;
            }
            return null;
        } catch (Exception e) {
            log.error("获取用户信息异常", e);
            return null;
        }
    }

    /**
     * 获取Authentication
     */
    public static Authentication getAuthentication() {
        return SecurityContextHolder.getContext().getAuthentication();
    }

    /**
     * 生成BCryptPasswordEncoder密码
     *
     * @param password 密码
     * @return 加密字符串
     */
    public static String encryptPassword(String password) {
        BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
        return passwordEncoder.encode(password);
    }

    /**
     * 判断密码是否相同
     *
     * @param rawPassword     真实密码
     * @param encodedPassword 加密后字符
     * @return 结果
     */
    public static boolean matchesPassword(String rawPassword, String encodedPassword) {
        BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
        return passwordEncoder.matches(rawPassword, encodedPassword);
    }

    /**
     * 是否为管理员
     *
     * @param userId 用户ID
     * @return 结果
     */
    public static boolean isAdmin(Long userId) {
        return userId != null && 1L == userId;
    }
}
